In 1 Corinthians 15:35-49, Paul addresses a question that people back then and people today have about resurrection: if Christians will physically rise from the dead, what kind of bodies will they have? Will we look the same way as when we died? Will we look like zombies? Will those who died with wounds still show those wounds when they are resurrected? Will we look younger or older? What about people whose bodies were cremated after they died? What will our resurrected bodies look like?
In response to these questions, Paul says: don't expect your resurrection body to look just like the body you died in (v37). Rather, your resurrection body will have a splendour that is altogether different from your earthly body (v40).
Does that mean that guys who always wanted six pack abs will get it with their resurrection body? Does that mean the parts of your body which you wish were smaller or bigger will be your ideal size when you get your resurrection body? I can't promise anything. But if we take a clue from how the disciples didn't immediately recognize the resurrected Jesus after he appeared to them (for example, Luke 24:15-16), it's very possible that when your loved ones see you in your resurrected body, your resurrection body will look different enough that they might not recognize you at first, but then when they realize it's you they'll be like, "Wow! It IS you!"
And if we take a clue from the word "splendour" (v40) and the way God seems to work (how He saves the best for last, how heaven is incomparably better than earth in every respect, and how Jesus is arrayed in beauty and glory that He didn't have on earth (Revelation 1:16)), I think it's safe to say that your resurrection body will be even more beautiful, powerful and glorious than your earthly body on its best day.
And if we consider other words Paul uses to describe your resurrection body ("imperishable" (v42), "glorious" and "powerful" (v43)) we can conclude that one day you and your believing loved ones will have resurrection bodies that can't suffer pain, sickness or death anymore. Instead, your bodies will reflect God's glory.
Praise God for the resurrection bodies He has promised to those who have trusted in Him! We've got much to look forward to when Jesus comes again!